A.O. Smith GDV Slow HOT Water Recov, Ery, Drip from Relief Valve, Thermostat Fails to, Shut OFF

Page 28

PROBLEM

 

POSSIBLE CAUSE(S)

 

CORRECTION

 

1.

Insufficient secondary air

1.

Provide ventilation to water heater. Check

 

 

 

 

flue way, flue baffle and burner

 

2.

Flue clogged

2.

Clean flue, locate source and correct

SLOW HOT WATER RECOV-

3.

Low gas pressure

3.

Check with gas utility company

4.

Improper calibration

4.

Replace gas control/thermostat

ERY

5.

Gas control/thermostat set too low

5.

Turn temperature dial to desired setting

 

 

6.

Water heater too small

6.

Install adequate size heater

 

7.

Wrong piping connections

7.

Correct piping-dip tube must be in cold inlet

 

8.

Wasted hot water

8.

Advise customer

 

1.

Excessive water pressure

1.

Use a pressure reducing valve and relief

 

 

 

 

valve

DRIP FROM RELIEF VALVE

2.

Heater stacking

2.

Lower the thermostat setting

 

3.

Closed water system

3.

See “Closed System/Thermal Expansion”

 

4.

Temperature setting too high

4.

Decrease the temperature setting

THERMOSTAT FAILS TO

1.

Defective gas control/thermostat

1.

Replace gas control/thermostat

SHUT OFF

2.

Improper calibration

2.

Replace gas control/thermostat

 

1.

Insufficient secondary air

1.

Provide ventilation to water heater. Check

COMBUSTION ODORS

 

 

 

flue way, flue baffle, burner

2.

Flue clogged

2.

Clean, locate source and correct

 

 

3.

Heater installed in a confined area

3.

Provide fresh air ventilation

 

1.

Insufficient secondary air

1.

Provide ventilation to water heater. Check

 

 

 

 

flue way, flue baffle, burner

SMOKING AND CARBON

2.

Low gas pressure

2.

Check with gas utility company

3.

Flue clogged

3.

Clean, locate source and correct

FORMATION (SOOTING)

4.

Defective gas control/thermostat

4.

Replace gas control/thermostat

 

 

5.

Heater installed in a confined area

5.

Provide fresh air ventilation

 

6.

Burner flame yellow-lazy

6.

See “Burner Flame Yellow-Lazy”

CONDENSATION

1.

Temperature setting too low

1.

Increase the temperature setting

2.

Water heater too small

2.

Install adequate size heater

 

 

1.

Orifice too large

1.

Replace with correct orifice

BURNER FLAME FLOATS

2.

High gas pressure

2.

Check with gas utility company

3.

Flue clogged

3.

Clean flue and burner-locate source & cor-

AND LIFTS OFF PORTS

 

 

 

rect

 

 

 

 

 

4.

Cold drafts

4.

Locate source and correct

BURNER FLAME TOO HIGH

1.

Orifice too large

1.

Replace with correct orifice

 

1.

Defective gas control/thermostat

1.

Replace gas control/thermostat

FLAME BURNS AT ORIFICE

2.

Low gas pressure

2.

Check with gas utility company

 

3

Orifice not properly installed

3

Reinstall the orifice

28

Image 28
Contents Residential GAS Water Heaters Safe INSTALLATION, USE and Service Important DefinitionsGeneral Safety Table of Contents IntroductionKeep Clear of ALL Obstructions Typical Installation GET to Know Your Water Heater Replacement PartsMixing Valve Usage Hotter Water can ScaldLocating the NEW Water Heater Facts to Consider about the LocationVentilation for Appliances Located in Confined Spaces Insulation BlanketsVent Termination Installing the NEW Water Heater Required AbilityInspect Shipment GeneralTEMPERATURE-PRESSURE Relief Valve Valve and Pipe Insulation if SuppliedClosed Water System Water Potable Heating and Space HeatingGAS Piping GAS Piping with Flexible Connector Sediment Traps Filling the Water Heater High Altitude InstallationsVenting Combustion AIR and Ventilation Vent Terminal ClearancesLocating Clearance Hole for Vent Vent ConnectionsHigh Rise Vent Arrangement Vent Assembly Securing Vent Termination Assembly to the Exterior WallStandard Vent Arrangement Uncompressing the Corrugated TubingOffset Vent Arrangement MinimumTOP Knob Figure DTemperature Regulation Temperature RegulationFor Your Information External DamageStart UP Conditions Operational ConditionsAIR in HOT Water Faucets Venting System Inspection MaintenancePilot and Main Burner Temperature & Pressure Relief Valve Anode ROD MaintenanceDraining Cathodic Protection AnodeDrain Valve Washer Replacement Service Leakage CheckpointsTroubleshooting Guidelines Problem Possible Causes CorrectionSlow HOT Water Recov ERYDrip from Relief Valve Thermostat Fails toPage Series Tank Parts XCV, XCVL, XCVH, XVRXCVT, Xcvx Conditions and ExceptionsService and Labor Responsibility Claim ProcedureInstallation Information Limitation on Implied WarrantiesTennessee Waltz Parkway Ashland CITY, TN

GDV, GDVT specifications

A.O. Smith is a well-known name in the water heating industry, and its GDVT and GDV series of water heaters exemplify the company's commitment to quality, efficiency, and innovation. These models are designed to provide reliable hot water solutions for both residential and commercial needs, seamlessly integrating advanced technology and user-friendly features.

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